Finding the Fourth Proportional to 959,366,742.30, 1,439,050,113.45 and 890,491,988.70
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Solution
The fourth proportional to 959,366,742.30, 1,439,050,113.45 and 890,491,988.70 is: 1,335,737,983.05
Step by Step Solution
- Step 1: Write the proportion equation
959,366,742.30 : 1,439,050,113.45 = 890,491,988.70 : x - Step 2: Convert to fraction form
959,366,742.30/1,439,050,113.45 = 890,491,988.70/x - Step 3: Cross multiply
959,366,742.30x = 1,439,050,113.45 × 890,491,988.70 - Step 4: Simplify right side
959,366,742.30x = 1,281,462,597,365,051,136 - Step 5: Solve for x
x = 1,281,462,597,365,051,136/959,366,742.30 - Step 6: Final answer
x = 1,335,737,983.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.